G Proteins Are Activated When GDP Is

question 11

Multiple Choice

G proteins are activated when GDP is

• A) phosphorylated to GTP while bound to the α-subunit.
• B) dephosphorylated to GDP while bound to the α-subunit.
• C) exchanged for the GTP that is bound to the α-subunit.
• D) exchanged for the GDP that is bound to the α-subunit.
• E) exchanged for the GDP that is bound to the βγ-subunit.

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Definitions:

Fertilizer Effectiveness

The impact of fertilizer on promoting plant growth, measured by the increase in biomass, yield, or health of the plants.

Wilcoxon Rank-sum Test

A nonparametric test used to assess whether there is a significant difference between two independent samples based on median comparison.

Kruskal-Wallis Test

A nonparametric statistical test used to compare three or more groups or samples that do not meet the assumption of normality.

Left-tailed Wilcoxon Rank Sum Test

A nonparametric test used to assess whether one of two groups of independent samples tends to have lower values than the other.